The quote from Victor Hugo's "Les Misérables" highlights the inherent nature of individuals, suggesting that, unlike animals, people can change their fundamental character. While a dove symbolizes peace and innocence, an osprey represents a more predatory and aggressive nature. This reflects the idea that humans have the capacity to deviate from their intrinsic qualities, often driven by circumstances or societal influences.

This observation raises philosophical questions about identity and moral choices. Hugo suggests that while animals remain true to their nature, people can become something entirely different, indicating a complexity in human behavior where environment and experiences can shape one’s actions and character. This theme resonates throughout "Les Misérables," as characters evolve in response to their struggles and societal pressures.